(scritches his head) For my part, I think the general howling of "OMG there's a SJW out there who said something I don't like, America's freedoms are at threat, ahhhh!!!!" is badly, badly overblown. Grow a pair, folks.
On the other hand, if you're running a historical setting straight, you're either constrained by the social and political mores of the setting, or you're running an alt-history game. It is not an "abuse" of history to consider that the only people who really counted in colonial America and thereafter were white male monied property owners. (Come now, I hope no one's under any delusion that the "common man" called any shots in 1776.)
Beyond that, having written a quasi-historical gamebook in the same time period (GURPS Scarlet Pimpernel), "this game is not an excuse to reenact harmful words or acts of the past ..." huh? Once I sent Steve Jackson the MS, the setting was out of my hands. If someone wanted to decide that 1793 Paris was a beacon of racial and sexual equality, I had no say over it, then or subsequently. If someone wanted 1793 Paris to be a place where les citoyens had wienie roasts over the mass pyres of blacks and gays, I had no say over it, then or subsequently.